Nut-lock.



H.1 WATTS.

4 NUT LOCK.

APPLICATION FILED MAR. a. 19m.

Patented Feb 12,1918.

mmwaav HARRY J. WATTS, OF TURTLE CREEK, PENNSYLVANIA.

NUT-LOCK.

rescues.

Application filed March 3, 1917.

To all whom it may concern:

. Be it known that I, HARRY J. VVATTS, a subject of the King of England,residing at Turtle Creek, county of Allegheny, and State ofPennsylvania, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

This invention relates to nut locks and has for its object to provide adevice of such class, in a manner as hereinafter set forth, with meansto arrest off-turning of a nut element when mounted in clamping positionunder such conditions preventing any loosening of the elements which aresecured to gether by the nut lock or an element maintained in positionby the nut lock.

- A further object of the invention is to provide a nut lock, in amanner as hereinafter set forth, with a nut locking member capable ofbeing conveniently mounted in and removed from operative position whenoccasion requires.

Briefly described the invention resides in the provision of a polygonalrecess or pocket inone of the elements adapted to be secured together,or in the element through which the bolt element of the lock extends,for the reception of a nut element of the lock and further for thereception of a frictional clamping nut locking member, having inner andouter polygonal shaped edges, which is interposed between the nutelementand the walls of the pocket thereby preventing any loosening oroff-turning of the nut element. The inner edge of the member conforms incontour to the shape of the nut and the outer edge to the shape of thepocket or recess.

Further objects of the invention are to provide a nut lock which issimple in its construction and arrangement, strong, durable, etiicientand convenient in its use, readily set lup and comparatively inexpensiveto pr0- vide. I

With the foregoing and other objects in View the invention consists ofthe novel construction, combination and arrangement of parts, ashereinafter more specifically dc scribed and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which come within the scope of the claims hereuntoappended.

In the drawings Specification of Letters Patent.

wherein like reference Patented Feb. 12, 191%.. Serial No. 152,215.

characters denote corresponding throughout the several views Figure l isan elevation of a nut lock in accordance with this invention showing theadaptation thereof in connection with the securing of a pair of elementstogether, the elements being shown in section.

Fig.2 is a section on line II-IL Fig. 1.

Fig. 3 is a perspective view of the nut locking member.

Fig. at is an edge view thereof.

0 Figs. 5 and 6 are front views of modified Iorms.

Referring to Figs. 1 to 4:, 1 and 2 pair of plates, bars, termedelements and be secured together by a nut lock in accordance with thisinvention. The plate 1 may have a polygonal recess 3 for the receptionof the head 4 of a bolt 5, extending through the elements 1 and 2, aswell as projecting outwardly from said element 2. The bolt 5 has athreaded end portion 6.

Mounted upon the threaded portion 6 of the bolt 5, is a hexagonal nut 7,adapted to extend in a correspondingly shaped pocket or recess 8, formedin the element 2. The recess or pocket 8 may be of a depth whereby thenut 7 will project beyond the mouth thereof, or so that the nut can becompletely housed within said recess or pocket.

Mounted in the recess or pocket 8 and interposed between the nut 7 andthe walls of the said recess or pocket is a split end locking member 9,which corresponds in contour to the shape of the pocket or recess. Themember 9 is resilient and when mounted in. position frictionally engageswith the nut and the walls of the pocket and under such conditionsprevent any possibility of the nut turning.

To facilitate the removal of the member 9 the split ends are oppositelybeveled as at 10, 11, and each end is also provided with a notch 12. Bythis arrangement a hook or other suitable tool can engage in the notchor under an end and the member 9 removed.

To facilitate the removal of the member 9, that portion opposite thesplit ends, is oppositely beveled as at l3, l4, and also provided withoppositely disposed notches 15, 16, to enable the removal of the member9 when desired. By oppositely beveling the member 9, as at 13, 14, thebody at such point parts denote a rods, or other ob ects,

which are adapted tois reduced in thickness, so if desired that portionof the membercan' be quickly severed by a tool and the sections removed.i

The member 9. may be of any desired thickness, preferably of lessthickness than the thickness of the nut, but if desired the member 9 maybe of a thickness equal to the depth of the recess in which it ismounted.

The locking member as illustrated in Fig.

' exception that 18 is square and the outer edge octagonal.

tour, a polygonal shaped 5, is indicated at 17 and is of a contoursimilar to that shown in Fig. 3, with the exception that the inner edgeof the member 17 is hexagonal while its outer edge is square.

, In the form shown in Fig. 6 the locking member, which is indicated at18, is similar in contour to that shown in Fig. 3 with the the inneredge of the member In Fig. 5 the nut is indicated at 19, the bolt at 20,and the recess or pocket in the element 2 is indicated at 21. The recess21 is square. 7 V In Fig. 6 the nut is indicated at 22, the bolt at 23and the recess or pocket in the element 2, at 24:. The recess or pocketis octagonal in contour.

Providing a polygonal shaped recess or pocket in the member 2 andassociating with the nut element, which is polygonal in conlockingmember which corresponds in contour to the shape of the nut and theshape of the recess, the nut will'be prevented from off-turning andunder such conditions the elements which are secured together by thelock will be prevented from becoming loose.

What I claim is 2-- 1. A nut lock comprising the combination with abolt, and an element through which the bolt extends, said element havingone face provided with a. polygonal shaped Copies of this patent may beobtained for pocket, of a polygonal shaped nut mounted on the bolt ofsaid pocket, and. a split polygnut, and said member having means 'topermit of the removal thereon 3. A nut lock comprising the combinationwith a bolt, and an element through which the bolt extends, said elementhaving one face provided with a polygonal shaped pocket, of a polygonalnutmounted on the bolt at said pocket, and a polygonalshaped lockingmember interposed between the nut and the walls of said pocket to.arrest turnof said pocketto ing movement of the nut, said member havmgbeveled portions and notches to permit of the removal thereof from therecess.

1. In a nut look a locking membercomprising a body having inner andouter polygonal shaped edges,

posed beveled'portions, and said body further having diametricallyopposed notches, the entrance lower part of said beveled portions.

to said notches being above the said body having one face provided withdiametrically op- In testimony whereof I'affix my signature in thepresence of two witnesses. V

' HARRY J.

Witnesses:

ELLA J. LETZKUR, MAX H. SRoLovrrz.

five cents each, by addressing the fiommissionerirol Eatents,

Washington, D. C.

WATTS.

